package com.json.util;

import com.alibaba.druid.pool.DruidDataSourceFactory;

import javax.sql.DataSource;
import java.sql.Connection;
import java.util.Properties;

/*
*数据源工具类
 */
public class DataSourceUtils {
    //数据源
    private  static DataSource dataSource;

    //初始化数据源
    static {
        //读取配置文件的对象
        Properties properties = new  Properties();
        try {
            //读取配置文件
            properties.load(DataSourceUtils.class.getClassLoader().getResourceAsStream("druid.properties"));
            //初始化数据源
            dataSource = DruidDataSourceFactory.createDataSource(properties);
        }catch (Exception e){
            throw  new RuntimeException();
        }

    }
/*
* 获取数据库连接
* @return
*/
    public static Connection getConnection(){
        if (dataSource !=null){
            try {
                return  dataSource.getConnection();
            }catch (Exception e){
                e.printStackTrace();
            }
        }
        return  null;
    }
}
